Welcome to Union Sanitary District
USD Residents
Our goal is to meet your sanitary sewer needs while serving you with respect and fairness. Your feedback is appreciated as we strive to continously improve.
USD Businesses
Union Sanitary District maintains all public sanitary sewer mains within Fremont, Newark, and Union City. This includes over 811 miles of pipelines.
News & Events
Find out about the events, activites and projects involving USD. Information here will be updated often, so check here to see about any important announcements.
Open Government
Union Sanitary District is dedicated to open government and easy to access information. Learn more about our finances, policies and projects.
Permits & Fees
New Single Family Dwelling, Accessory Dwelling Unit, Sewer Repairs/Replacements, Commercial/Industrial, Tracts, Capacity Fees, Standard Specifications and more.
Spill Record & USD Statistics
Wastewater agencies are required to track and report all overflows from their collection systems to the California State Water Resources Control Board.
Lateral Information Video
This video will help you understand your Sewer Lateral System and responsibilities. Learn how to identify if you have a lateral issue, and what to do about it.
Enhanced Treatment & Site Upgrade Program
The District’s Enhanced Treatment and Site Upgrade (ETSU) began construction in late 2021. It is the largest capital improvement program in USD’s history
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